Pipe heater controller



FIG. 1 is a front elevation view of the pipe heater controller;

FIG. 2 is a right side elevation view of the pipe heater controller;

FIG. 3 is a bottom plan view of the pipe heater controller;

FIG. 4 is a top plan view of the pipe heater controller;

FIG. 5 is a left side elevation view of the pipe heater controller;

FIG. 6 is a rear elevation view of the pipe heater controller; and,

FIG. 7 is a perspective view of the pipe heater controller. 

An ornamental design for a pipe heater controller, as shown and described. 